Skip to content
Mandiant Releases Tools to Combat Net-NTLMv1 Protocol Vulnerabilities

Mandiant Releases Tools to Combat Net-NTLMv1 Protocol Vulnerabilities

First seen 19 Jan 2026, 03:57 UTC

Article Content

Browse articles
ThreatCluster AI
ThreatCluster March 12, 2026 at 13:27 UTC

Mandiant has released rainbow tables that can crack credentials using the Net-NTLMv1 protocol within 12 hours. This legacy Microsoft authentication protocol has been known to expose users to credential theft for over 20 years, yet it remains in use in many organizations. The release aims to encourage migration away from this outdated and insecure protocol.

Start a free Starter trial for enhanced analysis

Ask AI about this cluster

Updated 182d ago How this analysis works

More articles in this cluster (4)

Following this threat?

Track Ta577, US Supreme Court and CVE-2025-54918 in your own feed — you're alerted when they show up in new reporting, leak sites or exploitation.

Free account · no card needed